离子色谱法测定环境空气中的氯化氢

Ion Chromatography for Determination of Hydrogen Chloride in Ambient Air

对于较为常见的空气污染成分氯化氢,一般采用碳酸钠和碳酸氢钠的联合吸收方式进行含量测定,而离子色谱法则能够对吸收液中的Cl-含量做出更加精确的客观评价。根据空气样本中氯化氢含量测定数据能够反映出环境空气整体状况,再对照相关检出限值和标准差判定空气样本中氯化氢含量是否符合环境要求。针对环境监测中空气样本氯化氢含量测定的方法和流程进行分析和探讨,并对环境空气中低含量氯化氢的测定方法进行解析说明。

For hydrogen chloride,a relatively common air pollution component,the combined absorption method of sodium carbonate and sodium bicarbonate is generally used for content determination,while the ion chromatography method can make a more accurate and objective evaluation of Cl-content in the absorption solution.According to the measurement data of hydrogen chloride content in air sample,it can reflect the overall situation of ambient air,and then determine whether the hydrogen chloride content in air sample meets the environmental requirements by comparing the relevant detection limit and standard deviation.This paper analyzes and discusses the method and process of determining the content of hydrogen chloride in air samples in environmental monitoring,and explains the determination method of low content hydrogen chloride in ambient air.